import logging
import random
import re

import time
from datetime import datetime, timedelta

from flask import abort
from flask import current_app, jsonify
from flask import g
from flask import make_response
from flask import redirect
from flask import render_template
from flask import request
from flask import session
from flask import url_for

from info import constants, db
from info import redis_store
from info.libs.yuntongxun.sms import CCP
from info.models import User, News, Category
from info.utils.captcha.captcha import captcha
from info.utils.common import user_login_data
from info.utils.image_storage import storage
from info.utils.response_code import RET
from . import admin_blue

@admin_blue.route('/news_type', methods=['GET', 'POST'])
def news_type():
    if request.method == 'GET':
        # 获取所有的分类数据
        categories = Category.query.all()
        # 定义列表保存分类数据
        categories_dicts = []

        for category in categories:
            # 获取字典
            cate_dict = category.to_dict()
            # 拼接内容
            categories_dicts.append(cate_dict)

        # 返回内容
        return render_template('admin/news_type.html', data={"categories": categories_dicts})

    """修改或者添加分类"""
    category_id = request.json.get("id")
    category_name = request.json.get("name")
    if not category_name:
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    # 判断是否有分类id
    if category_id:
        try:
            category = Category.query.get(category_id)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.DBERR, errmsg="查询数据失败")

        if not category:
            return jsonify(errno=RET.NODATA, errmsg="未查询到分类信息")

        category.name = category_name
    else:
        # 如果没有分类id，则是添加分类
        category = Category()
        category.name = category_name
        db.session.add(category)

    try:
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="保存数据失败")
    return jsonify(errno=RET.OK, errmsg="保存数据成功")

@admin_blue.route('/news_edit_detail',methods = ["GET","POST"])
def news_edit_detail():
    """新闻编辑详情"""

    if request.method =="GET":
        news_id = request.args.get('news_id')

        if not news_id:
            return render_template('admin/news_edit_detail.html',data={'errmsg':'未查询到此新闻'})

        #查询新闻
        news = None
        try:
            news = News.query.get(news_id)
        except Exception as e:
            current_app.logger.error(e)

        if not news:
            return render_template('admin/news_edit_detail.html',data={'errmsg':"未查询到此新闻"})

        # 查询分类的数据
        categories_li =[]
        categories = Category.query.all()
        for category in categories:
            c_dict = category.to_dict()
            c_dict['is_selected']=False
            # 获取遍历时的每一个ID和当前新闻的ID做对比
            #　如果一样　就设置一个KeyValue到字典中
            if category.id == news.category_id:
                c_dict['is_selected'] = True
            categories_li .append(c_dict)
        # 移除，最新，分类
        categories_li.pop(0)

        data = {'news':news.to_dict(),"categories":categories_li}
        return render_template('admin/news_edit_detail.html',data = data)

    news_id = request.form.get("news_id")
    title = request.form.get("title")
    digest = request.form.get("digest")
    content = request.form.get("content")
    index_image = request.files.get("index_image")
    category_id = request.form.get("category_id")

    # 1.1 判断是否有值
    if not all([title,digest,content,category_id]):
        return jsonify(errno=RET.PARAMERR,errmsg = '参数有误')

    news = None
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)

    if not news:
        return jsonify(errno = RET.NODATA,errmsg='未查询到新闻数据')

    # 1.2 常识读取图片
    if index_image:
        try:
            index_image = index_image.read()
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno = RET.PARAMERR,errmsg = "参数有误")

        #　2. 将标题图片上传到七牛
        try:
            key = storage(index_image)
        except Exception as e:
             current_app.logger.error(e)
             return jsonify(errno = RET.THIRDERR,errmsg = "上传图片错误")
        news.index_image_url = constants.QINIU_DOMIN_PREFIX +key

    # 3.设置相关数据
    news.title = title
    news.digest = digest
    news.content = content
    news.category_id = category_id

    # 4. 保存到数据库
    try:
        db.session.commit()
    except Exception as e:
        db.session.rollback()
        current_app.logger.error(e)
        return jsonify(errno = RET.DBERR,errmsg = "保存数据失败")

    # 5.返回结果
    return jsonify(errno = RET.OK,errmsg= "编辑成功")

@admin_blue.route('/news_edit')
def news_edit():
    """返回新闻列表"""
    page = request.args.get("p", 1)
    keywords = request.args.get("keywords", "")
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    news_list = []
    current_page = 1
    total_page = 1

    try:
        filters = []
        # 如果有关键词
        if keywords:
            # 添加关键词的检索选项
            filters.append(News.title.contains(keywords))

        # 查询
        paginate = News.query.filter(*filters) \
            .order_by(News.create_time.desc()) \
            .paginate(page, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)

        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_list = []
    for news in news_list:
        news_dict_list.append(news.to_basic_dict())

    context = {"total_page": total_page, "current_page": current_page, "news_list": news_dict_list}

    return render_template('admin/news_edit.html', data=context)


@admin_blue.route('/news_review_detail', methods=["GET", "POST"])
def news_review_detail():
    """新闻审核"""
    if request.method == "GET":
        # 获取新闻id
        news_id = request.args.get("news_id")
        if not news_id:
            return render_template('admin/news_review_detail.html', data={"errmsg": "未查询到此新闻"})

        # 通过id查询新闻
        news = None
        try:
            news = News.query.get(news_id)
        except Exception as e:
            current_app.logger.error(e)

        if not news:
            return render_template('admin/news_review_detail.html', data={"errmsg": "未查询到此新闻"})

        # 返回数据
        data = {"news": news.to_dict()}
        return render_template('admin/news_review_detail.html', data=data)

    # 执行审核操作

    # 1.获取参数
    news_id = request.json.get("news_id")
    action = request.json.get("action")

    # 2.判断参数
    if not all([news_id, action]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    if action not in ("accept", "reject"):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    news = None
    try:
        # 3.查询新闻
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)

    if not news:
        return jsonify(errno=RET.NODATA, errmsg="未查询到数据")

    # 4.根据不同的状态设置不同的值
    if action == "accept":
        news.status = 0
    else:
        # 拒绝通过，需要获取原因
        reason = request.json.get("reason")
        if not reason:
            return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
        news.reason = reason
        news.status = -1

    # 保存数据库
    try:
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="数据保存失败")
    return jsonify(errno=RET.OK, errmsg="操作成功")


@admin_blue.route('/news_review')
def news_review():
    """返回待审核新闻列表"""

    page = request.args.get("p", 1)
    keywords = request.args.get('keywords', "")
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    news_list = []
    current_page = 1
    total_page = 1

    filters = [News.status != 0]
    if keywords:
        filters.append(News.title.contains(keywords))

    try:
        paginate = News.query.filter(*filters) \
            .order_by(News.create_time.desc()) \
            .paginate(page, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)

        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_list = []
    for news in news_list:
        news_dict_list.append(news.to_review_dict())

    context = {"total_page": total_page, "current_page": current_page, "news_list": news_dict_list}

    return render_template('admin/news_review.html', data=context)


@admin_blue.route('/user_list')
def user_list():
    """获取用户列表"""

    # 一.获取参数
    page = request.args.get('p',1)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    # 设置变量默认值
    uesrs = []
    current_page = 1
    total_page = 1
    # 查询数据
    try:
        paginate = User.query.filter(User.is_admin == False).order_by(User.last_login.desc()).paginate(page,constants.ADMIN_USER_PAGE_MAX_COUNT,False)
        users = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    # 将模型列表转成字典列表
    users_list = []
    for user in users:
        users_list.append(user.to_admin_dict())

    data = {
        "total_page": total_page,
        "current_page": current_page,
        "users": users_list
    }
    return render_template('admin/user_list.html',data =data)


@admin_blue.route('/user_count',methods = ['GET','POST'])
@user_login_data
def user_count():
    # 一.注册信息
    # 用户总人数
    total_count = 0
    try:
        total_count = User.query.filter(User.is_admin == False).count()
    except Exception as e:
        current_app.logger.error(e)

    # 月新增人数
    mon_count = 0
    # 2018年6月27日 09:17:00 --> 2018年6月1日 00:00:00
    # 1. 获取当前的()年()月信息 --> 2019 3
    # 2. 将字符串转换为要对比的时间(要和数据库的时间格式一样): 2018-06-01 00:00:00
    # 3. 使用查询语句进行对比即可

    # 1. 如何获取年月信息
    # now_date = datetime.now()
    # now = time.localtime()
    # mon_begin = '%d-%02d-01' % (now.tm_year, now.tm_mon)

    # 2. 如何按照一定的日期格式, 将字符串转换为日期
    # %Y: 四位年: 2018
    # %m: 2位 月
    # %d: 2位 日
    # strptime: 将日期字符串, 按照一定的格式转换为日期对象
    # begin_date = datetime.strptime(mon_begin, '%Y-%m-%d')
    try:
        now = time.localtime()
        mon_begin = '%d-%02d-01'%(now.tm_year,now.tm_mon)
        mon_begin_date = datetime.strptime(mon_begin,'%Y-%m-%d')
        mon_count = User.query.filter(User.is_admin ==False,User.create_time >= mon_begin_date).count()
    except Exception as e :
        current_app.logger.error(e)

    # 每日新增用户
    day_count = 0

    try:
        day_begin = '%d-%02d-%02d'% (now.tm_year,now.tm_mon,now.tm_mday)
        day_begin_date = datetime.strptime(day_begin,'%Y-%m-%d')
        day_count = User.query.filter(User.is_admin == False,User.create_time > day_begin_date).count()
    except Exception as e:
        current_app.logger.error(e)

    # 二.查询图表信息
    # 获取到当天00:00:00时间
    now_date = datetime.strptime(datetime.now().strftime('%Y-%m-%d'),'%Y-%m-%d')

    # 定义空数组，保存数据
    active_date = []
    active_count = []

    # 依次添加数组 在反转
    for i in range(0,31):
        # 获取每一天的当前日期的零点和下一天的零点  2018-06-27 00:00:00  /  2018-06-28 00:00:00
        begin_date = now_date -timedelta(days =i)
        end_date = now_date-timedelta(days = (i-1))

        # 添加到列表中
        active_date.append(begin_date.strftime('%Y-%m-%d'))

        count =0
        try:
            count = User.query.filter(User.is_admin == False,User.last_login >= begin_date,
                                      User.last_login < end_date).count()
        except Exception as e:
            current_app.logger.error(e)
        # 添加到列表中
        active_count.append(count)

    active_date.reverse()
    active_count.reverse()

    data = {
        'total_count':total_count,
        'mon_count':mon_count,
        'day_count':day_count,
        'active_date':active_date,
        'active_count':active_count
    }

    return render_template('admin/user_count.html',data =data)

@admin_blue.route('/index',methods=["POST","GET"])
@user_login_data
def index():

    return render_template('admin/index.html',user = g.user.to_dict())


# 这个和装饰器相比，只需要在init蓝图创建的地方写一次，后续所有的路由全部都有权限的校验
#　之前判断普通用户的登录，是因为有些接口不需要登录页能实现数据的获取，只能一个一个加
@admin_blue.route('/login',methods=["POST","GET"])
@user_login_data
def login():
    if request.method =='GET':
        # 去 session 中取指定的值
        user_id = session.get("user_id", None)
        is_admin = session.get("is_admin", False)

        # 如果用户id存在，并且是管理员，那么直接跳转管理后台主页
        if user_id and is_admin:
            return redirect(url_for('admin.index'))
        return render_template('admin/login.html')

    # 取到登录的参数  POST 请求
    # 我们此时可以采取每个请求无论成功或者失败, 都渲染模板
    # 渲染模板不需要返回JSON错误. 没有JSON我们获取参数就用表单
    username = request.form.get("username")
    password = request.form.get("password")
    # 判断参数
    if not all([username, password]):
        return render_template('admin/login.html', errmsg="参数错误")

    # 查询当前用户
    try:
        user = User.query.filter(User.mobile == username, User.is_admin == True).first()
    except Exception as e:
        current_app.logger.error(e)
        return render_template('admin/login.html', errmsg="用户信息查询失败")

    if not user or not user.check_password(password):
        return render_template('admin/login.html', errmsg="用户名或者密码错误")

    # 保存用户的登录信息
    session["user_id"] = user.id
    session["nick_name"] = user.nick_name
    session["is_admin"] = user.is_admin

    # 跳转到后面管理首页  重定向到admin下的index试图函数
    return redirect(url_for('admin.index'))
